course phy 201

The problem:A ball accelerates at 8 cm/s^2 for 3 seconds, starting with velocity 12 cm/s.

• What will be its velocity after the 3 seconds has elapsed?

answer/question/discussion: 36 cm/sec

• Assuming that acceleration is constant, what will be its average velocity during this interval?

answer/question/discussion: 24 cm/sec

• How far will it travel during this interval?

answer/question/discussion: 84 cm

Please resubmit and indicate how you got your results.

Your last answer is wrong and I can't tell how you got it.